Set in the Snow country, this movie looks to be a stand-alone adventure that will feature no or little relevance to the main Naruto plotline in the manga or anime. The story will follow the plight of the leader of the Snow Country, his young daughter and his younger brother. Originally, the ruler of this small, ice covered country was a bespectacled man named Kazehana Sousetsu, who had helped keep the country peaceful and had ambitions to let his daughter rule the country when he had retired.
However, his younger brother Dotou was also keen to take the throne and he revolted against Sousetsu to take control of the Snow country. Tragically, Sousetsu was killed, but as he died he gave a precious crystal to his daughter, named Koyuki, who then fled the country. At this time, a younger ANBU-member Kakashi was also in the Snow country fulfilling some mission, and it may be logical to assume that he helped the girl to desert her homeland. Ten years later, and back in the present, the new ruler of the Snow country, Dotou, is trying to strengthen his country's military forces in order to challenge the power of the 5 Great Shinobi countries.
Back in the Leaf Village, it is some time after the end of the Chuunin exam, and Kakashi's Team 7 are given a new mission, the first one they've worked together on for a long time. The duty assigned to the team is to escort a popular but selfish actress called Fujimi Yuki to the Snow country where she is to film a new movie, the last in the 'Adventures of the Unlucky Princess' series, even though she is reluctant to go and walks out of the studio. Eventually she is persuaded to go, but the reception she recieves in the Snow country is far from friendly.
Their enemies in the movie are called Mizore, Nadare and Fubuki (whose names translate to Sleet, Avalanche and Snow-Storm) who are dressed in special suits that allow them to utilise snow-based attacks, particularly with the mechanical looking devices on their arms. They attack the actress and Team 7 at once, but there seems to be some relation between their attack and the girl Koyuki, who went missing ten years previously...
The movie will also feature a second, smaller story about an athletic competition that will be held in the Leaf Village, featuring Team 7 and many of the Leaf Genin.